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organisms provided a basic understanding of lowland rice field ecology and successional dynamics.  Biotic factors limiting growth of cyanophytes were identified and isotopic labelling of blue-green algae showed invertebrate grazers (zooplankton and neckton) to be a major limiting factor to growth of cyanopytes. Management of grazers increased soil fertility and protein content of rice. USA & SE Asia.   Client: UNDP

Philippines  1980-1983

Aquatic / Soil Ecology. Research to increase the natural fertility of water and sediments for sustainable production of lowland rice. Isolation of toxic strains, P-solubilising and effective N2-fixing strains of blue-green for 1980-85 inoculation trials with grazer management interventions; natural agents blocking nitrifiation/denitrification and ricefield management to reduce N losses were subjected to extensive field trials and significant gains in N2 fixed were achieved. Pesticide effects on aquatic fauna in ricefields and irrigation canals. Studies with insecticides on soil microflora, soil function and floodwater fauna. USA & India and SE Asia.  Client: UNDP

Germany 1985-86

Ecotoxicology: Applied research into insecticide impacts on aquatic invertebrates, flooded soil microbial processes and rice plant nutrition. Funding body: A.v.Humboldt Stiftung

UK  1974-6

Environmental Impact Long-term baseline study of fish and invertebrate populations prior to Craig Goch dam enlargement: impact of inter-river transfers and river regulation on aquatic ecology.  Client  Welsh Water Authority


2006  Facilitation of French translation and publishing of  Ecological Monitoring Methods for the Assessment of Pesticide Impacts in the Tropics (Eds Ian Grant and Colin Tingle).  Client PAN UK

2002 - 2005.  Environmental advisor to the Programme Advisory Committee of the DFID Plant Sciences Programme. Client: DFID

1999 - 2005. Environmental inputs to the Programme Advisory Committee of the DFID Animal Health and Livestock Production  Programmes. Client: DFID


Commissioned paper on the environmental factors relevant to cheap and safe tsetse control in mixed farming systems  Client: NRIL

2002.  Identification and remediation of contaminated land in Kent electricity substations (PCB and heavy metals) Client Seeboard UK

2002. Validation of environmental protocols and monitoring operations of tsetse control in Ngamiland, Botswana.  Continuing expert consultation for the Dept.of Animal Health and Production (Botswana) and Dept. of Water Affairs (Botswana) to review budgets, programme and progress. Client: DFID and DAHP

2001. Advice for NGOs on environmental monitoring protocols submitted to the Tsetse Control Division (Botswana) for investigating the impact of deltamethrin on human safety and wildlife.  Client: DFID

2000.  Environmental Risk Assessment of endosulfan and pyrethroid use in the Okavango Delta for the control of tsetse flies. Client: Government of Botswana.

1998-2000 – Farming in Tsetse Controlled Areas.  Kenya/Uganda/Mozambique.  Development of research programme and budgets for the EC project Client: EC EDF

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